a:8:{i:0;s:8:"audit_id";i:1;s:10:"company_id";i:2;s:9:"open_time";i:3;s:8:"due_time";i:4;s:9:"open_type";i:5;s:8:"activity";s:3:"_pk";s:8:"audit_id";s:5:"_type";a:6:{s:8:"audit_id";s:3:"int";s:10:"company_id";s:12:"int unsigned";s:9:"open_time";s:12:"int unsigned";s:8:"due_time";s:12:"int unsigned";s:9:"open_type";s:16:"tinyint unsigned";s:8:"activity";s:16:"tinyint unsigned";}}